摘要
Yima and American Pocahontas No. 3 coal samples were exhaustively extracted with carbon disulfide （CS2）/tetrahydrofuran mixed solvent and cyclohexanone, respectively. The residues after extraction were oxidized in 30% hydrogen peroxide aqueous solution at 40 ℃. Water-soluble and insoluble fractions were separated in the reaction mixture by filtration, and then extracted with benzene and CS2, respectively. The extraction solutions were analyzed with GC/MS. The results show that both water-soluble fractions from the two oxidized coal residues contain small amount of phenol. Oxygen-containing compounds and long-chain alkanes are detected in the extraction solution with CS2 from the water-insoluble fraction.
Yima and American Pocahontas No. 3 coal samples were exhaustively extracted with carbon disulfide (CS2)/tetrahydrofuran mixed solvent and cyclohexanone, respectively. The residues after extraction were oxidized in 30% hydrogen peroxide aqueous solution at 40°C. Water-soluble and insoluble fractions were separated in the reaction mixture by filtration, and then extracted with benzene and CS2, respectively. The extraction solutions were analyzed with GC/MS. The results show that both water-soluble fractions from the two oxidized coal residues contain small amount of phenol. Oxygen-containing compounds and long-chain alkanes are detected in the extraction solution with CS2 from the water-insoluble fraction.
出处
《燃料化学学报》
EI
CAS
CSCD
北大核心
2005年第1期121-124,共4页
Journal of Fuel Chemistry and Technology
基金
国家自然科学基金 ( 20076051 )
国家重点基础研究发展规划项目 (G1999022101 )
高等学校博士学科点专项科研基金(20020290007)
教育部科学技术研究重点项目(104031)。~~
关键词
萃余煤
双氧水
氧化
萃取
GC/MS分析
coal residue
hydrogen peroxide
oxidation
extraction
GC/MS analysis
